| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 41.7 | 172 |
| 2015 | 40.9 | 172 |
| 2014 | 40.1 | 172 |
| 2013 | 39.3 | 172 |
| 2012 | 38.5 | 172 |
| 2011 | 37.7 | 173 |
| 2010 | 36.7 | 173 |
| 2009 | 36 | 173 |
| 2008 | 36.2 | 173 |
| 2007 | 34.9 | 173 |
| 2006 | 33.3 | 174 |
| 2005 | 32.1 | 174 |
| 2004 | 31.2 | 174 |
| 2003 | 30.4 | 174 |
| 2002 | 29.7 | 174 |
| 2001 | 29.2 | 174 |
| 2000 | 28.6 | 174 |
| 1999 | 28 | 174 |
| 1998 | 27.1 | 175 |
| 1997 | 26.4 | 176 |
| 1996 | 26.2 | 176 |
| 1995 | 25.5 | 176 |
| 1994 | 24.5 | 175 |
| 1993 | 24.2 | 175 |
| 1992 | 23.4 | 175 |
| 1991 | 22.7 | 176 |
| 1990 | 21.8 | 176 |
| 1989 | 21.7 | 174 |
| 1988 | 21 | 174 |
| 1987 | 20.3 | 174 |
| 1986 | 19.6 | 174 |